I tried it some time ago and used it for a small project. I rather liked it, so EPIC is part of my Eclipse setup. Then again, I never tried another Perl-specific IDE since I usually work with Emacs/bash.
You get an outline with the subroutines so that the code is easy to navigate. There's also a list with modules that are used in the file. It is easy to run a file: parameters can be specified and saved for future runs (button click). There's syntax highlighting and on-the-fly syntax checking with errors marked and explained.
All in all, EPIC is nice to use, although it still needs a lot of work when compared with the facilities the Java environment offers.
Just my 2 cents, -gjb-